3326-50A – Weld Yokes – 1330 Series – Butt Dia 4.757″ – Tube Dia Wall 5.000X0.125

The 3326-50A is the 1330-series entry in the large-diameter aluminum tube family -- the smallest joint series offered in the 5.000" aluminum tube format. This combination serves performance applications where maximum critical speed from the 5.000" tube OD is required and the 1330 series provides sufficient joint capacity for the application's torque level. Moving from a heavier steel 1330 shaft to an aluminum 5.000" 1330-series assembly can reduce shaft weight by 35--45%, improving throttle response and reducing parasitic driveline inertia.

• 1330 series: 1.062" cap with 1330-specific cup depth; do not substitute 1310 joints
• 4.757" butt diameter -- standard for 5.000"x0.125" tube across all aluminum weld yoke series; tube prep is consistent
• 2.875" CL-to-weld -- same as the 1350 (3526-51A), 1410 (4126-50A), and 1480 (4826-50A) variants at this tube spec; confirms CL is a yoke body characteristic consistent across series at the same tube size and CL variant
• This weld yoke is appropriate for street performance cars where the 1330 joint is adequate and weight savings are the primary motivation for specifying aluminum

Capacity boundary check: if the application exceeds 450 lb-ft at the driveshaft (allowing for drivetrain multiplication), the 1330 series at 5.000" tube approaches its fatigue limit under sustained high-torque driving. For forced-induction or high-compression performance builds above this threshold, step up to the 1350 aluminum family at the same tube OD for the necessary torque margin.